There are two possible uses for controlling the speed of the bell cup:
- Preferential Control: The BSC 300 senses the fiber optic signal and controls the proportional valve (Diagram 3).
Alternative control: The BSC 300 captures the fiber optic signal and the PLC controls the proportional valve
(Diagram 4).
Possible device configurations
The turbine speed is detected using the fiber optic principle.
One of the two fiber optic cables emits a continuous light signal, which is reflected on the turbine shaft in a
discontinuous signal, the frequency of which indicates the number of revolutions (2 light pulses/turbine revolution). This
The discontinuous signal is carried from the second fiber optic cable using a fiber optic cable set of 8 m length (FO).
transferred to the optoelectronic converter (CFO). The electrical pulse signal at the converter output is from the
Speed ??control unit BSC 300 received and analyzed.
